Hearing aid topshell



FIG. 1 is a front view thereof;

FIG. 2 is a rear view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is an isometric view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the hearing aid top shell that form no part of the claimed design. 

CLAIM The ornamental design for a hearing aid topshell, as shown and described. 